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草业学报 ›› 2013, Vol. 22 ›› Issue (3): 124-.DOI: 10.11686/cyxb20130316

• 研究论文 • 上一篇    下一篇

6种杀菌剂对3种禾草病害的防治研究

文克俭1,罗天琼1,张莉1*,陈燕萍1,周玉锋2,龙忠富1,吴佳海1,苏生1   

  1. 1.贵州省草业研究所,贵州 贵阳 550006;
    2.贵州省茶叶研究所,贵州 贵阳 550006
  • 出版日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: E-mail:gzzli7798@sohu.com
  • 作者简介:gzcyswkj@163.com
  • 基金资助:
    贵州省科技厅社会发展攻关,国家科技部农业科技成果转化资金项目,贵州省科技厅“十一·五”重大专项,贵州省科技厅农业攻关,贵州省科技厅黔科合院所创能,贵州省农业科学院专项和贵州省科技厅农业攻关资助。

Control efficacy of 6 fungicides against 3 pathogens of turfgrass diseases

WEN Ke-jian1, LUO Tian-qiong1, ZHANG Li1, CHEN Yan-ping1, ZHOU Yu-feng2, LONG Zhong-fu1,WU Jia-hai1, SU Sheng1   

  1. Control efficacy of 6 fungicides against 3 pathogens of turfgrass diseases
    WEN Ke-jian1, LUO Tian-qiong1, ZHANG Li1, CHEN Yan-ping1, ZHOU Yu-feng2,
    LONG Zhong-fu1,WU Jia-hai1, SU Sheng1
    (1.Guizhou Pratacultural Institute, Guiyang 550006, China; 2.Guizhou
    Tea Institute, Guiyang 550006, China)
  • Online:2013-06-20 Published:2013-06-20

摘要: 为了筛选用于禾草病害防治的高效、低毒、低残留的杀菌剂,本试验选用6种常见的杀菌剂对3种禾草病原菌进行了室内毒力测定及田间试验。结果表明,苯菌灵对褐斑病菌和炭疽病菌的EC50值分别是0.492 4,0.446 6 mg/L,多菌灵对禾草云斑病菌的EC50值是0.413 0 mg/L,其抑制作用最好。田间药效试验表明,50%苯菌灵WP(750 g/hm2)防治禾草褐斑病和禾草炭疽病、25%多菌灵WP(750 g/hm2)防治禾草云斑病有各自较好的防治效果,在药后10 d的防效分别是75.40%,72.06%和76.97%。室内毒力测定与田间药效试验结果表现一致,且6种供试药剂防治3种禾草病害具有明显的时效性。

Abstract: Virulence determination on three pathogens of grass diseases and field trials with six fungicides were carried out. The EC50 of benomyl to Rhizoctonia solani and Colletotrichum gloeosporioides were 0.492 4 and 0.446 6 mg/L, respectively. The EC50 of carbendazim to Rhynchosporium secalis was 0.413 0 mg/L. Carbendazim had the highest toxicity of the fungicides to Rhynchosporium secalis. The field control efficacy of 50% benomyl against Rhizoctonia solani and Colletotrichum gloeosporioides of turfgrass was 75.40% and 72.06%, respectively, while the control efficacy of 25% carbendazim on Rhynchosporium secalis was 76.97%.

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